Add init_tests to CTS

Test: atest CtsInitTestCases
Test: Cts in presubmit still passes
Change-Id: Ic16dafbaacfbace904947bd3ce2b8586f981348f
diff --git a/init/subcontext_test.cpp b/init/subcontext_test.cpp
index ae89c38..dcbff82 100644
--- a/init/subcontext_test.cpp
+++ b/init/subcontext_test.cpp
@@ -43,7 +43,7 @@
 template <typename F>
 void RunTest(F&& test_function) {
     if (getuid() != 0) {
-        GTEST_LOG_(INFO) << "Skipping test, must be run as root.";
+        GTEST_SKIP() << "Skipping test, must be run as root.";
         return;
     }